Multi-welding-spot welding device and multi-welding-spot automatic welding device

Abstract

The utility model relates to a multi-welding-spot welding device and a multi-spot automatic welding device. The multi-welding-spot welding device comprises a plurality of welding guns and a welding bottom plate; the side face bottom plate is provided with a plurality of welding guns and arranged on the welding bottom plate in a sliding mode. The side driving cylinder is used for providing two welding positions; the secondary driving device and the side driving air cylinder are oppositely arranged and used for providing a welding position, and the secondary driving device and the side driving air cylinder are matched to provide three welding positions. A plurality of welding guns are mounted on the end part bottom plate and are arranged on the welding bottom plate in a sliding manner; the end driving air cylinder is connected with the end bottom plate and used for providing two welding positions for the welding gun. The corner welding devices are arranged on the two sides of the end bottom plate. According to the multi-welding-spot welding device, a plurality of welding guns are adopted for welding at the same time, welding spots on the side face are welded for three times, welding spots at the end are welded for two times, welding spots at the corners are welded for one time, all the welding spots can be welded through welding for three times on the whole, the welding efficiency is greatly improved, and the welding cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of welding devices, especially a kind of multi-welding point welding device and multi-point automatic welding device. BACKGROUND

[0002] As Figure 12 The dish-washing machine inner container shown in the figure, including top plate, two side plates and end plate, side plate is symmetrically located at the both sides of top plate, end plate is located at one end of top plate, present need two side plates and an end are welded to top plate, the welding point between side plate and top plate is designed as 18, the welding point between end plate and top plate is 16, the welding point at corner is 3. The existing welding mode is sequentially welded, the dish-washing machine inner container is fixed on fixture, fixture is installed on linear module, then linear module drives fixture and dish-washing machine inner container to move, welding head sequentially welds, and it needs to be welded 74 times to weld a dish-washing machine inner container, so that the welding time of single dish-washing machine inner container is longer, and the welding cost is higher. SUMMARY

[0003] To solve the above-mentioned problems of low welding efficiency and high welding cost, the utility model provides a kind of multi-welding point welding device and multi-point automatic welding device, and the specific technical scheme is as follows:

[0004] A kind of multi-welding point welding device, including several welding guns, further comprising: welding base plate;Side base plate, equipped with several welding guns, and slidingly disposed on the welding base plate, the side base plate is also symmetrically arranged;Side drive cylinder, disposed on the welding base plate, and connected with the side base plate, for providing two welding positions for the welding gun;Secondary drive device, disposed on the welding base plate, and oppositely arranged with the side drive cylinder, for providing a welding position for the welding gun, the secondary drive device cooperates with the side drive cylinder to provide three welding positions for the welding gun;End base plate, equipped with several welding guns, and slidingly disposed on the welding base plate, the end base plate is also located at one end of the side base plate;End drive cylinder, disposed on the welding base plate, and connected with the end base plate, for providing two welding positions for the welding gun;And corner welding device, disposed on both sides of the end base plate.

[0005] Preferably, the secondary drive device includes: secondary drive cylinder, the secondary drive cylinder is disposed on the welding base plate;Secondary drive plate, the secondary drive plate is slidingly disposed on the welding base plate, and connected with the secondary drive cylinder;Secondary drive block, the secondary drive block is symmetrically installed on both sides of the secondary drive plate, and is provided with drive slope, the drive slope is oppositely arranged with the side base plate, for pushing the side base plate to move.

[0006] Further, the secondary driving device further comprises a driving roller rotatably arranged at one end of the side bottom plate and opposite to the driving slope.

[0007] Preferably, the adjustable connecting device is further connected with the side bottom plate and the welding gun.

[0008] Further, the adjustable connecting device comprises an adjusting guide rail arranged on the side bottom plate, an adjusting base arranged on the adjusting guide rail and connected with the welding gun, and an adjusting screw arranged on the adjusting base and opposite to the adjusting guide rail, used for fixing the adjusting base on the adjusting guide rail.

[0009] Preferably, the welding gun comprises a welding support, a welding cylinder arranged on the welding support, a lifting plate slidingly arranged on the welding support, a welding seat arranged on the welding cylinder and connected with the lifting plate, and a welding head arranged on the welding seat.

[0010] Preferably, the corner welding device comprises a corner bottom plate arranged on the welding bottom plate, a corner frame slidingly arranged on the corner bottom plate, a corner telescopic cylinder arranged on the corner frame and connected with the corner bottom plate, a corner cylinder arranged on the corner frame, and a corner welding assembly arranged on the corner cylinder.

[0011] Further, the corner welding assembly comprises a corner seat arranged on the corner cylinder, and a corner welding head arranged on the corner seat.

[0012] Further, the corner welding assembly further comprises a first rotating shaft arranged at one end of the corner seat and rotatably connected with the corner cylinder, a second rotating shaft arranged at the other end of the corner seat away from the corner welding head, a connecting rod having one end rotatably connected with the second rotating shaft, and a third rotating shaft arranged on the corner frame and rotatably connected with the other end of the connecting rod.

[0013] A multi-point automatic welding device comprises the multi-welding-point welding device.

[0014] Compared with the prior art, the multi-point automatic welding device has the following beneficial effects:

[0015] The multi-welding-point welding device provided by the utility model adopts multiple welding guns to simultaneously weld, the side welding points are welded three times through the side driving cylinder and the secondary driving cylinder, the end welding points are welded two times through the end driving cylinder, and the corner welding points are welded once through the corner welding device, so that the welding of all the welding points can be completed by three times of welding in the whole, the welding efficiency is greatly improved, and the welding cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of the multi-welding-point welding device;

[0017] Figure 2 is a front view of the multi-welding-point welding device;

[0018] Figure 3 is an assembly schematic view of the side driving cylinder, the side bottom plate and the welding gun;

[0019] Figure 4 is a structural schematic view of the welding gun;

[0020] Figure 5 is an assembly schematic view of the secondary driving device and the side bottom plate;

[0021] Figure 6 is a front view of 5;

[0022] Figure 7 is a structural schematic view of the corner welding device;

[0023] Figure 8 is a front view of the corner welding device;

[0024] Figure 9 is a structural schematic view of the multi-point automatic welding device;

[0025] Figure 10 is a front view of the multi-point automatic welding device;

[0026] Figure 11 is a structural schematic view of the clamping device;

[0027] Figure 12 is a welding point schematic view of a dishwasher inner container. DETAILED DESCRIPTION

[0028] The utility model will be further described in combination with the drawings.

[0029] Embodiment one

[0030] As Figures 1 to 8As shown, a multi-welding point welding device includes a welding gun 33, a welding base plate 1, a side base plate 32, a side driving cylinder 31, a secondary driving device 4, an end base plate 52, an end cylinder and a corner welding device 2. The side base plate 32 is slidingly installed on the welding base plate 1 through a linear guide pair, and two side base plates 32 are symmetrically arranged, and six welding guns 33 are arrayed on the side base plate 32, and the six welding guns 33 are also symmetrically arranged. The side driving cylinder 31 is fixed on the welding base plate 1, the piston rod of the side driving cylinder 31 is connected with the side base plate 32 through a side connecting block 311, and the side driving cylinder 31 is used for providing two welding positions for the welding gun 33; the secondary driving device 4 is installed on the welding base plate 1 and is arranged perpendicularly to the side driving cylinder 31, and the secondary driving device 4 is used for providing one welding position for the welding gun 33, and the secondary driving device 4 cooperates with the side driving cylinder 31 to provide three welding positions for the welding gun 33; the end base plate 52 is slidingly installed on the welding base plate 1 through a linear guide pair, and eight welding guns 33 are arrayed on the end base plate 52, and the end base plate 52 is located at one end of the side base plate 32; the end driving cylinder 51 is fixed on the welding base plate 1, the piston rod of the end driving cylinder 51 is connected with the end base plate 52 through an end connecting block, and the end driving cylinder 51 is used for providing two welding positions for the welding gun 33; and the corner welding device 2 is installed on both sides of the end base plate 52.

[0031] When welding eighteen welding points on the side, the piston rod of the side driving cylinder 31 is first in the retracted state, then the six welding guns 33 are started to perform first welding on the side, and the six welding guns 33 realize six welding points at the first welding position, then the piston rod of the side driving cylinder 31 is in the extended state, at this time the secondary driving device 4 abuts against one end of the side base plate 32, then the six welding guns 33 are started to perform second welding of the side welding points, and the six welding guns 33 realize six welding points at the second welding position, finally the secondary driving device 4 leaves the side base plate 32, and the piston rod of the side driving gas is completely extended, and the six welding guns 33 realize six welding points at the third welding position, and the three times of welding complete eighteen welding points, which greatly improves the welding efficiency and reduces the welding cost.

[0032] At the same time of side welding, the piston rod of the end driving cylinder 51 is first in the retracted state, and the eight welding guns 33 on the end base plate 52 first complete eight welding points at the first welding position, then the piston rod of the end driving cylinder 51 is in the extended state, and the eight welding guns 33 on the end base plate 52 complete eight welding points at the second welding position, and the two times of welding complete sixteen end welding points, and the two times of welding of the end welding points can be synchronized with or staggered with the side welding, or can be completed before the side welding is completed, so that the welding time is shortened.

[0033] At the same time of side welding, the corner welding device 2 also performs welding to realize welding of three corner welding points at one time.

[0034] The adoption of the cylinder drive can reduce the equipment cost and control is simple, and the speed of the cylinder is fast, which can ensure efficient welding.

[0035] The welding gun 33 comprises a welding support 335, a welding cylinder 331, a lifting plate 334, a welding seat 332 and a welding head 333; the end of the welding cylinder 331 is fixed on the welding support 335, the lifting plate 334 is slidably installed on the welding support 335 through a linear guide pair and is connected with the welding seat 332, the welding seat 332 is fixed on the piston rod of the welding cylinder 331, the welding seat 332 is provided with a cooling water channel, the bottom of the welding seat 332 is connected with the welding head 333, and the welding head 333 is used for welding. The welding gun 33 is a mature product, and the welding cylinder 331 is used for pressing the welding head 333 on the workpiece for welding.

[0036] The inner container of the dishwasher is a stainless steel plate with a thickness of 0.4 mm, and the resistance welding mode is adopted, and the welding power source adopts an intermediate frequency inverter welding power source.

[0037] The secondary driving device 4 comprises a secondary driving cylinder 41, a secondary driving plate 42 and a secondary driving block 44, the secondary driving cylinder 41 is fixed on the welding bottom plate 1; the secondary driving plate 42 is slidably installed on the welding bottom plate 1 through a linear guide pair and is connected with the secondary driving cylinder 41, the secondary driving block 44 is symmetrically fixed on both sides of the secondary driving plate 42, the secondary driving block 44 is provided with a driving slope 441, the driving slope 441 is oppositely arranged with the end of the side bottom plate 32, and is used for pushing the side bottom plate 32 to move. In order to facilitate the installation of the secondary driving plate 42, the secondary driving plate 42 is connected with the secondary fixing plate 43 through a linear guide pair, and the secondary fixing plate 43 is installed on the welding bottom plate 1. The secondary driving cylinder 41 realizes the third welding of the side welding point, and the structure is simple and the control is convenient.

[0038] In order to reduce the friction between the side bottom plate 32 and the driving slope 441, improve the service life, and reduce the vibration caused by the impact, the secondary driving device 4 further comprises a driving roller 341, the driving roller 341 is rotatably installed on a driving rod 342, the driving rod 342 is fixed on one end of the side bottom plate 32, and the driving roller 341 is oppositely arranged with the driving slope 441.

[0039] In order to adjust the position of the welding spot according to different specifications of products, an adjustable connecting device is further included, which is connected with the side bottom plate 32 and the welding gun 33 respectively. The adjustable connecting device includes an adjusting guide rail 35, an adjusting base 36 and an adjusting screw. The adjusting guide rail 35 is installed on the side bottom plate 32 and is in the shape of a dovetail guide rail. The adjusting base 36 is provided with an adjusting groove 361 in the shape of a dovetail groove. The adjusting base 36 is slidingly installed on the adjusting guide rail 35 through the dovetail groove 361 and is connected with the top of the welding support 335. The adjusting screw is installed on the side of the adjusting base 36 and is arranged opposite to the adjusting guide rail 35. The end of the adjusting screw is used to abut against the adjusting guide rail 35 to fix the adjusting base 36 on the adjusting guide rail 35. When the position of the welding head 333 is adjusted, the adjusting screw is loosened, then the adjusting base is moved to move the welding head 333 to the required welding position, and then the adjusting screw is tightened again.

[0040] The corner welding device 2 includes a corner bottom plate 21, a corner support 22, a corner telescopic cylinder 23, a corner cylinder 24 and a corner welding assembly. The corner bottom plate 21 is installed on the welding bottom plate 1 and is symmetrically arranged and located on both sides of the end bottom plate 52. The top of the corner support 22 is slidingly installed on the corner bottom plate 21 through a linear guide rail pair and is connected with the corner cylinder. The piston rod of the corner cylinder is connected with the corner bottom plate 21. Three corner cylinders 24 are arranged. The corner cylinders 24 are fixed on the bottom of the corner support 22 and are connected with the corner welding assembly. The corner welding assembly includes a corner seat 25 and a corner welding head 26. The corner seat 25 is installed on the piston rod of the corner cylinder 24 and is connected with the corner welding head 26. The corner seat 25 is provided with a cooling water channel. During welding, the corner welding head 26 needs to be staggered with the end welding. When the end bottom plate 52 is on the left side, the left corner telescopic cylinder 23 is retracted, the right corner telescopic cylinder 23 is extended, then the right corner cylinder 24 drives the corner welding head 26 to press tightly to the right corner of the dishwasher inner container for welding, and three welding spots are completed at one time. When the end bottom plate 52 is on the right side, the right corner telescopic cylinder 23 is retracted, the left corner telescopic cylinder 23 is extended, the left corner cylinder 24 drives the corner welding head 26 to press tightly to the left corner of the dishwasher inner container for welding, and three welding spots are completed at one time.

[0041] In order to make the corner welding gun 33 cylinder force uniform, the corner welding assembly further comprises a first rotating shaft 281, a second rotating shaft 282, a third rotating shaft 283 and a connecting rod 27, the first rotating shaft 281 is installed at one end of the corner seat 25 provided with the corner welding head 26, and the first rotating shaft 281 is further rotatably connected with the corner cylinder 24; the second rotating shaft 282 is installed at the other end of the corner seat 25 away from the corner welding head 26; the connecting rod 27 is rotatably connected with the second rotating shaft 282 and the third rotating shaft 283 at two ends respectively, and the third rotating shaft 283 is installed at the bottom of the corner frame 22. Since the corner welding gun 33 cylinder is located between the corner welding head 26 and the connecting rod 27, the radial force is small, the service life of the corner cylinder 24 is improved, and the corner welding head 26 can be effectively pressed on the dishwasher inner container, so as to ensure the welding quality.

[0042] Embodiment two

[0043] As Figures 9 to 11 shown, a multi-point automatic welding device comprises a multi-welding point welding device, further comprising a welding frame 6, a feeding device 7 and a clamping device 8, the welding bottom plate 1 of the multi-point welding device is installed at the top of the welding frame 6, and the feeding device 7 is installed on the bottom plate of the welding frame 6 and connected with the clamping device 8. When working, the feeding device 7 moves the clamping device 8 to the end of the welding frame 6 away from the multi-point welding device, then manually or automatically loads the top plate, end plate and side plate of the dishwasher inner container, and clamps through the clamping device 8, then the feeding device 7 moves the fixed dishwasher inner container to the lower side of the multi-point welding device, and then welding is carried out. The overall welding efficiency is high, which greatly shortens the welding time.

[0044] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the present application, and cannot be interpreted as limiting the protection scope of the present application in any way. Based on the explanations herein, other specific embodiments of the present application can be conceived by those skilled in the art without creative labor, and these embodiments will fall within the protection scope of the claims of the present application.

Claims

1. A multi-spot welding device comprising several welding guns (33), characterized in that, Also comprising: a welding base plate (1); a side base plate (32) provided with a plurality of said welding torches (33) and slidingly arranged on said welding base plate (1), said side base plate (32) being symmetrically arranged; a side driving cylinder (31) arranged on said welding base plate (1) and connected with said side base plate (32) for providing two welding positions for said welding torches (33); a secondary driving device (4) arranged on said welding base plate (1) and oppositely arranged with said side driving cylinder (31) for providing one welding position for said welding torches (33), said secondary driving device (4) cooperating with said side driving cylinder (31) to provide three welding positions for said welding torches (33); an end base plate (52) provided with a plurality of said welding torches (33) and slidingly arranged on said welding base plate (1), said end base plate (52) being located at one end of said side base plate (32); an end driving cylinder (51) arranged on said welding base plate (1) and connected with said end base plate (52) for providing two welding positions for said welding torches (33); and a corner welding device (2) arranged at both sides of said end base plate (52). Said secondary driving device (4) comprises:

2. A multi-spot welding device according to claim 1, characterized in that a secondary driving cylinder (41) arranged on said welding base plate (1); a secondary driving plate (42) slidingly arranged on said welding base plate (1) and connected with said secondary driving cylinder (41); a secondary driving block (44) symmetrically arranged at both sides of said secondary driving plate (42) and provided with a driving slope (441) oppositely arranged with said side base plate (32) for pushing said side base plate (32) to move. Said secondary driving device (4) further comprises a driving roller (341) rotatably arranged at one end of said side base plate (32) and oppositely arranged with said driving slope (441).

3. A multi-spot welding device according to claim 2, wherein Also comprising:

4. The multi-spot welding device of claim 1, wherein, an adjustable connecting device connected with said side base plate (32) and said welding torch (33) respectively. Said adjustable connecting device comprises:

5. A multi-spot welding device according to claim 4, wherein an adjusting guide rail (35) arranged on said side base plate (32); an adjusting base (36) arranged on said adjusting guide rail (35) and connected with said welding torch (33); and an adjusting screw arranged on said adjusting base (36) and oppositely arranged with said adjusting guide rail (35) for fixing said adjusting base (36) on said adjusting guide rail (35). Said welding torch (33) comprises:

6. The multi-spot welding device of claim 1, wherein, a welding support (335); a welding cylinder (331) arranged on said welding support (335); a lifting plate (334) slidingly arranged on said welding support (335); ​ A welding seat (332) is arranged on the welding cylinder (331) and connected with the lifting plate (334); and A welding head (333) is arranged on the welding seat (332).

7. The multi-spot welding device of claim 1, wherein, The corner welding device (2) comprises: A corner base plate (21) arranged on the welding base plate (1); A corner frame (22) slidingly arranged on the corner base plate (21); A corner telescopic cylinder (23) arranged on the corner frame (22) and connected with the corner base plate (21); A corner cylinder (24) arranged on the corner frame (22); and A corner welding assembly arranged on the corner cylinder (24).

8. A multi-spot welding device according to claim 7, wherein The corner welding assembly comprises: A corner seat (25) arranged on the corner cylinder (24); and A corner welding head (26) arranged on the corner seat (25).

9. A multi-spot welding device according to claim 8, wherein The corner welding assembly further comprises: A first rotating shaft (281) arranged at one end of the corner seat (25) and rotationally connected with the corner cylinder (24); A second rotating shaft (282) arranged at the other end of the corner seat (25) away from the corner welding head (26); A connecting rod (27) rotationally connected at one end with the second rotating shaft (282); and A third rotating shaft (283) arranged on the corner frame (22) and rotationally connected at the other end with the connecting rod (27).

10. A multi-point automatic welding apparatus characterized by comprising: A multi-welding-point welding device as claimed in claim 1 is provided.

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